Need comprehensive glyph test procedure

[hmdunce]

Problem

Need a comprehensive manual test to make sure all supported glyphs work.

Context

I've noticed that when generating the SDF atlas, it's possible for some glyphs to become severely damaged.

In the case of #30 I am pretty sure this won't have happened, but I haven't actually confirmed yet.

#40 could help here maybe.

[kaj-se]

I've noticed that when generating the SDF atlas, it's possible for some glyphs to become severely damaged.

I also noticed that since latly working with my FontForge editor. Make a copy of the project then open it in FontForge, save it and have a look in diff. For me the editor changed the offsets by 5. But idn't found a solution for that. It do that on windows and linux.